A symptom is something the patient senses and describes, while a sign is something other people, such as the doctor notice. For example, drowsiness may be a symptom while dilated pupils may be a sign. The symptoms overall of motion sickness include nausea, vomiting, and dizziness (vertigo). Other common signs are sweating and a general feeling of discomfort and not feeling well (malaise). Mild symptoms are categorized as headache, mild unease and yawning.
Carbon dioxide is transported in the blood from the tissue to the lungs in three ways: (i) dissolved in solution; (ii) buffered with water as carbonic acid; (iii) bound to proteins, particularly haemoglobin.Approximately 75% of carbon dioxide is transport in the red blood cell and 25% in the plasma.arbon dioxide transport in the tissue is summarized in Figure 1. It combines with water to form carbonic acid. This reaction is very slow in plasma but fast within the red blood cell owing to the presence of the enzyme carbonic anhydrase.
Summary: 1  Both carbon dioxide and bicarbonate are present in the blood and are used to measure how well your lungs are working and how balanced is the acid-base component in the blood of people who are suffering from kidney diseases, heart problems, or diabetes.he blood transports carbon dioxide to the lungs where it will be exhaled. More than 90 percent of CO2 in the human blood is available as the bicarbonate (HCO3) form. The remaining carbon dioxide is either the dissolved form of the gas (CO2) or in carbonic acid form.